Remove the belt cover, from the top right corner with a small screwdriver inserted, down upon, tape box pops up, remove the tape, press down with empty warehouse, open the power supply, found after boot instantaneous belt wheel is not turning. Because in normal, OPERATE opens, micro phenomenon due to load motor (i.e., with a rotary stop), now turn the main shaft by hand to make its position change, found some position in the boot or rotary moment, some position did not turn. cwPservice manual download site
Remove the main motor shaft, three hall device measuring resistance value between each foot in, found a hall element resistance value is abnormal, smaller than the other two hall element resistance nearly half. Replace the parts after installed the mainboard electric commissioning, returned to normal.cwPservice manual download site